You'll be surprised at how easy it is for any gent to get dressed this way. Just a navy lightweight puffer jacket combined with a blue chambray long sleeve shirt. Black and white athletic shoes will introduce a more dressed-down aesthetic to the ensemble. Can you see how super easy it is to look seriously stylish and stay comfy when chillier weather arrives, all thanks to combos like this? After all, when do you dress casually if not at 20?